Ash sifter



Mar. 27, 1923- v v 1,449,837

C. H. QUIRK AZSH SIFTER Filed Oct. 11, 1919 FIG. 1

- I NVENTOR AT'II'ORNEY Patented Mar. 27, 1923.

UNIT STATS CLINTON' H. QUIRK, OF RICHMOND HILL, NEW YORK.

ASH SIFTER.

Application filed October 11, 1919.

To all whom it may concern:

Be it known that I, CLINTON H. QUIRK, a citizen of the United States, and a resident of Richmond Hill, in the county of Queens and State of New York, have invented certain new and useful Improvements in Ash Sifters, of which the following is a specification.

The invention relates to a device for sifting coal and ashes, being intended to separate the comparatively useless portion of such mixture from the more valuable material; and it has for its object to construct a device of this character which will not readily become clogged, but wherein the material as shovelled into the receptacle will be properly screened, being caused to slide smoothly over the screening portion thereof-no shaking or other operation being required. A further object ofthe invention consists in constructing a storage portion in the bottom of the receptacle in manner that the screened ash received therein will be so stacked as to be without tendency to slide. This enables a considerable quantity to be stored in that the receptacle may be opened without danger of the screened material falling out thru the opening provided and scattering about. It is understood, of course, that a separate compartment is provided in the bottom of the receptacle for the unburned and more valuable portion of the mixture.

In the accompanying drawings, which illustrate the invention Fig. 1 is a perspective view of the ash sifter; and Fig. 2 is a vertical section therethru.

Similar characters of reference designate corresponding parts thruout the several views.

Referring to the drawings, the sifter is shown composed of a plurality of walls, preferably of sheet metal, which form an inclined chute 10 and a base portion 11 beneath same, and into which the chute is designed to discharge the useless or screened portion of the mixed ash and coal as well as the more valuable unburned or semi-burned portion. The-former is designed to be discharged into a compartment 12 provided at the bottom of the device, and the latter into a compartment 13 in front of same and at the mouth of the chute 10. The more valuable portion discharged into the compartment 13 may be removed therefrom in any convement Serial No. 330,056.

manner as thru an opening 14 in the front of said compartment, and which is designed to be normally closed thru a slide or similar member 15. The material discharged into the compartment 12 may be removed thru the rear of said compartment, an opening 16 being provided in the rear wall thereof andv normally closed by suitable removable plate or the like 17 The wall 18 at the rear of compartment 12 is arranged at the proper angle, approximately forty-five degrees, to-

with many types of sifters heretofore employed.

The upper surface of the chute 10 is provided, preferably, with two removable covers 19 to allow access to the interior of the chute, the one being located at the upper end and the other at the lower end, while the lower surface of said chute is covered thruout its length with a suitable screening material. of different mesh, progressively increasing toward the lower end. That is to say, for example, onesthird of the distance might be provided with a 3-mesh No. 18 wire as the mesh 20; a further third of the screen adjacent same of 2-mesh of No. 16 wire as the screen 21; and the final and lowermost of a %-mesh of No. 12 wire as the screen 22. By this arrangement, the larger portions of the mixture cannot stick in the openings of the screen 20 and will readily roll or slide down the inclined chute, gaining suflicient momentum by the time they reach the screens of larger mesh to prevent settling therein. Should the material, however, for any reason become clogged in its passage thru the chute 10, access thereto may be conveniently had by lifting ofl' either or both of the two removable covers 19.

During the progress of the material thru the chute, the fine and burned material is sifted thru the respective screens and delivered, at the upper portion of said screens, into a passageway 23 formed between the This material is arranged to be bottom of the screening material and an inclined wall 24 of the casing, said passageway terminating at the top of the compartment 12, over which the lowermost portion of the screens also extends. T he more or less unburned and more valuable portion of the mixture continues directly into the compartment 13 from which it may be removed in any convenient manner thru the opening 14 provided. A suitable hinged door or cover 25 may be arranged at the entrance of the chute 10 to normally close same, as indicated in Fig. 2.

In the use of the device hereinbetore described, no shaking or manual operation other than the shoveling in of the ash is required and frequent removal of the screened material is unnecessary in view of the particular construction of the chamber 12- whereby the said material is properly stacked.

I claim:

A combined ash sitter and container for the separated ash and unburned material,

comprising: a suitable casing entirely closed at the bottom, having an inclined chute portion provided with an inlet at the upper end, and an outlet at the lower end thru which the large and unburned material is delivered into a compartment at the forward portion of the casing, said compartment being provided with a suitable outlet, means to close the same, a continuous strip of screening material provided along a suilicient length of the lower face of the chute and of progressively increasing mesh downwardly to effect a clean separation, the finer and burned portion of the ash being discharged therethru into a compartment at the rear end oi the casing and separated from the forward compartment, the rear compartment being pr vided with a suitable outlet for the removal of the ash, and a closure for same.

Signed at New York, in the county of )Tew York and State of New York this 6th day of October, A. D. 1919.

CLINTON H. QUIRK. 

